Since our early ancestors began to move out of Africa, humans have
constantly expanded their range. Human civilization has evolved to the
point at which we can consider tapping space resources and expanding
beyond Earth's atmosphere. This book presents a visionary concept for
future development of space travel. It describes the enabling technology
for future propulsion concepts and demonstrates how mankind will 'live
off the land in space' in migration from Earth. For the next few
millennia at least (barring breakthroughs), the human frontier will
include the solar system and the nearest stars. Will it be better to
settle the Moon, Mars, or a nearby asteroid and what environments can we
expect to find in the vicinity of nearby stars? These are questions that
need to be answered if mankind is to migrate into space.